Method for improving shock resistance of Y-shaped pier
A bridge pier and capacity technology, applied in bridges, bridge parts, bridge materials, etc., can solve the problems of complex design of Y-shaped piers and weak seismic performance, and achieve the effects of improving mechanical performance, convenient positioning and clear force
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[0029] The urban elevated Y-shaped pier in this embodiment has a bottom section size of 160cm × 500cm, and the cross-sectional size of the arms and legs is 160cm × 190cm. The pier body material of the urban elevated Y-shaped pier is C40 concrete, and the pier body of the urban elevated Y-shaped pier Use HRB335 steel bar.
[0030] (1) a method for improving the seismic capacity of Y-type bridge piers, comprising the following steps:
[0031] Step 1. Beam reinforcement
[0032] A crossbeam is set between the two limbs of the Y-shaped pier to connect the two limbs. At the same time, prestressed steel bars are arranged on the crossbeams of the Y-shaped pier. See figure 1 , specifically, arrange a row of N1-N13 prestressed steel bars at the upper end of the beam, and arrange a row of N14-N26 prestressed steel bars at the lower end of the beam;
[0033] The prestressed steel bars form the prestressed steel tendons, and the external force generated by the prestressed steel tendons ...
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